Hedtrioh schlatter



(No Model.) 2 Sheets-Sheet 1.

H. SGHLATTER.

GENTRIPUGAL WOOD AND lfAPBB. SORTING MACHINE. No. 310,469. I PatentedJan. 6, 1885.

WITNESSES: INVENTOR Mdw y, Heinrich Scum,

ATTORNEYS (No Model.) 2 Sheets-Sheet 2. H- SOHLATTER.

GENTRIFUGAL WOOD AND PAPER SORTING MACHINE.

No. 310,469. PatentedJan. 6, 1885.

WITNESSES: Y INVENTOR a Han-pack ,SEMafiev. 57 BY MM $4M 7/ ATTORNEYSUNITED STATES PATENT OFFICE.

HEINRICH SOHLATTER, OF REUTLINGEN, lVllRTEMBERG, GERMANY.

CENTRIFUGAL WOOD AND PAPER SORTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 310,469, dated January6, 1885.

Application filed October '22, 1884. (No model.)

To all whom it may concern.-

Be it known that I, HEINRICH SCHLATTER, a citizen of the German Empire,residing at Reutlingen, in the Kingdom of W'iirtemberg and GermanEmpire, have invented new and useful Improvements in Centrifugal Woodand Paper Sorting Machines, of which the following is a specification.

This invention relates to machinery for assorting wood pulp, paper-pulp,and similar material 5 and its object is to furnish an apparatus havinga quantitatively as well as a qualitatively superior yield to theapparatuses heretoforeemployed for this purpose.

The apparatus employs a distributer having spouts arranged at varyingheight-s along its periphery or rim. Said distributor is mounted on avertical axis, and a tube or conduit con- .nected to said distributorand moving therewith serves to wash the apparatus.

The features of the apparatus are hereinafter more'fully set forth.

This invention is illustrated in the accompanying drawings, in whichFigure 1 is avertical central section of the apparatus. Fig. 2 is a planview, partly in section and partly broken away. Fig. 3 is a sideelevation of the dist'ributer. Fig. 4: is a detail view herein referredto.

Similar letters indicate corresponding parts.

In the drawings, a designates a base or stand in which are the journalsof a vertical axis or shaft, 9, and b is a pulley for imparting motionto said shaft 5 On the base a rests a reservoir or tank, 0, with anentrance, at, for the material to be sorted diluted with water. Abovethe reservoir 0 rests the chaur berf, in which the sorting takes place.\Vithin this chamber f and concentrically there with is placed a screenor sieve, c. This screen or sieve 0 may be formed of a piece of sheetmetal bent or shaped into cylindrical form and provided with holes orperforations of elongated or other suitable form, or said screen may beformed of wires having small spaces between them.

On the vertical shaft 9 and rotating there with is a distributor, d, thelower end of which enters into the fluid mass contained in the reservoirc. The construction of the'distributer, as shown, is such that by itsrotation the mass or pulp in the reservoir 0 is caused to rise withinthe distributer, and, being ejected through the openings or spouts z inthe distributer and thrown against the screen 6, the mass or pulp willbe sorted by such'screen. As is shown, the spouts z are arranged atvarious levels or heights along the rim or periphery of the distributor,thus causing the entire surface of the screen (3 to be utilized insorting the pulp, the pulp being thrown from the spouts c at variousheights against the screen 0, while at the same time any particularportion of the screen is only utilized for a moment during onerevolution of the distributer.

On the vertical axis 9 is supported on arms a tube or conduit 71, havingholes or perforations. The upper arm, 1', of the tube h is hollow andcommunicates with the interior of the vertical axis 9, which axis 9,from its junction with the arm 2' upward, is hollow, thus forming aninlet to the interior of the tube 71 The upper part of the axis 9 isprovided with a stuiii11g-box,'l.'. \Vater can thus be allowed to flowthrough the inlet in the upper part of the axis r into the tube h, andsaid water being ejected from the openings in the tube It and thrownagainst the screen will wash off said screen and prevent clogging orstopping of its openings or interstices. As the tube h revolves with theaxis 9, the water flowing from the tube h will cleanse every part of thescreen 0 as it has been used. The centrifugal force generated by therevolution of the tube 7L throws the water from the openings in the tubeIt against the screen 0, so that very little or no pressure need beapplied to the column of water in the tube It and its inlet. Thewater-spray thrown against the screen 0 also accomplishes a sorting ofthe pulp which clings to the screen 6. The washing-tube h passes throughthe narrowest or lowest portion of the distributer e. 'so-that the waterissuing from the tube-h is thrown against every part of the screen 0.The vertical axis gis, in addition to its lower journal, guided in a journal or sleeve, t, in the reservoir 0. This journal or sleeve neednot, however, beastuffingbox. The axis g is also guided in the cover Z.The cover Z has lugs or projections for steadying or rc-enforcing thescreen a. The screen 6 IOO .terial in the sortingv apparatus ceases.

may be advantageously strengthened with rings of iron or suitablematerial around its edges, and 011 the removal of the cover Z the screen0 may also be removed and replaced by one having larger or smalleropenings or interstices, according to the character of the sorting to beaccomplished. As will be noticed, the material ejected from thedistributer makes an up-and-down movement upon the screen, suchup-and-down motion correspond ing to one revolution of the distributer.As many revolutions as the distributer makes in any -period-for example,one minuteso many times will the ejected material from the distributermake an oscillating or upanddown movement on the surface of the screen.By this arrangement is accomplished the same result as by a shaking orsliding sieve, with the distinction that in the apparatus thesieve orscreen is stationary instead of being shaken or oscillated while theonflowing mass is in motion, and by swift revolutions of the distributer a large number of oscillations can be attained. The material tobe sorted is thrown against the screen by the centrifugal forcegenerated by the revolutions of the distributer, accomplishing athorough sorting of the material and utilizing the entire surface of thescreen. The cleansingwater from the tube It is thrown against the screenwith a force at least equal to that of the mass to be sorted, saidcleansing-water coming into contact with the entire surface of thescreen at each revolution of the distributerthat is, every time that thescreen has been utilizedthus keeping the same clean. Upon the ceasing ofthe revolution of the distributer the flow of ma- The reservoir 0 may beprovided with an overflow or connected with a corresponding reservoir ofother like apparatuses, which may operate in conjunction with oneanother. By this arrangement overflowing and consequent soiling can beprevented. A fixed jacket or fun nel-shaped sleeve, 3 surrounds thelower part of the distributer din the reservoir 0, and prevents therotation of the distributer from be ing communicated to the mass in thereservoir 0, which would interfere with the taking up of the material bythe distributer. If the distributer takes up more material than is fedinto the reservoir 0, the level of the material in the reservoir 0falls, so as to allow air to flow through the inlet or duct 00 into thedistributer d, whereby the amount of material taken up and discharged bythe distributer is diminished. The rising and falling of the surface ofthe material in the reservoir 0 regulates the amount of material takenup by the distributer, as the higher and lower level of such surfacemore or less obstructs the passage of air through the duct 00. In placeof one duct or, several such ducts may be used. The fine material mixedwith water which has passed through the sieve or screen is collected inthe circular reservoir or receiver m of the chamber f, and is led offthrough the channel or opening a. The coarser material which has notpassed through the openings of the sieve or screen 6 is washed off thescreen eby the water from the washing-tube h, and falls into thereservoir or receiver 0, from whence it passes off through the opening12, Fig. 2, by virtue of its fluid condition. The exit of the coarsematerial through the opening or passage p can be hastened by aninjection of water through the inlet 9, which inlet qis placeddiametrically opposite to the outlet 1), as shown in Fig. 4 in verticaltransverse section. An ejector, 1", may also be provided to hasten theexit of the material from the receiver 0. This ejector r is shown inFig. 1, andis represented as consisting of a flat arm or blade attachedto the distributer d, and which is carried around the receiver 0 by therevolutions of the distributer, thus tending to force the ma terial inthe receiver 0 out of the opening 1).

I am aware that the United States Letters Patent No. 276,250, of April24, 1883, mention machinery for assorting wood pulp and similar materialhaving a screen, drum, and a fan having helicoidal wings; and suchmachinery I do not claim herein.

vVhat I claim as new, and desire to secure by Letters Patent, is

1. A distributer, (I, provided with spoutsz, arranged at varying heightsalong the pe riphery or rim of said distributer, substantially as setforth.

2. The combination, with a rotating distributer, d, of a tube orconduit, h, connected to said distributer and rotating therewith,substantially as set forth.

3'. The combination, with a distributer, d, and reservoir 0, of an inletor duct, 0:, communicating with the interior of said distributer,substantially as set forth.

4. The combination, with a distributer, d, of a jacket or funnel, y,surrounding thelower portion of said distributer, substantially as setforth.

5. The combination, with a distributer, d, of a tube or conduit, h, andan axle or shaft, 5 provided with an inlet communicating with said tubeor conduit 71 substantially as set forth.

(3. The combination, with a distributer, d, of a tube or conduit, h, anda jacket or funnel, 1, surrounding the lower portion of saiddistributer, substantially as set forth.

7. The combination, with a distributer, d, of a jacket or funnel, 3surrounding thelower portion of said distributer, areservoir, c, and aninlet or duct, or, communicating with the interior of said distributer,substantially as set forth. 7

8. The combination, with a rotating distributer, d, of an ejector, r,operated by said distributer, substantially as set forth.

9. The combination, with a distributer, d, mounted on a vertical shaft,9, and provided with a tube or conduit, h, of a screen, 6, reservoirs orchambers c o m, jacket 7 and inlet In testimony whereof I have hereuntoset or duct 00, substantially as set forth. my hand and seal in thepresence of two sub- 10. The combination, with a distributer, (Z,scribing Witnesses. mounted on a Vertical shaft, 9, and providedHEINRICH SOHLATTER. [L. 8.] 5 with a tube or conduit, h, and an ejector,r, of Witnesses:

reservoirs or chambers c 0 m and outlets n and GUSTAV DIETERLEN,

2, substantially or set forth. WVILH. BUDERER.

